It seems that ScanDig in Germany still have Kodachrome targets for sale:
https://www.scandig.com/colour-management/it-8-targets/lasersoft-it8-target-transparency-kodachrome-35mm.html
I am dubious that any could remain in stock for so long, but the price might
explain why....
Euro 699
Excluding shipping!
Piers
-----Original Message-----
From: olympus <olympus-bounces+piers.hemy=gmail.com@xxxxxxxxxxxxxxxxx> On
Behalf Of Moose
Sent: 10 February 2020 19:26
To: olympus@xxxxxxxxxxxxxxxxx
Subject: Re: [OM] Scanner profiling with Vuescan and IT8 printed target
On 2/10/2020 10:22 AM, Piers Hemy wrote:
> I can't help on the specifics, Jez (I might if I could find my own IT-8
> slide from Wolf Faust!) but I have to question the proposition that a
> profile from the reflective scanner will be usable with the transmissive
> scanner - different light sources, no?
Indeed so.
With a contemporary film, it's straightforward. Shoot the printed target in
midday light, and calibrate from the
processed film. Yes, its a combination profile of film and scanner, but that
doesn't matter, as long as you use the same
scanner.
I did that for the color neg films I was shooting before digital, and the
results were dramatic, saving lots of post
processing effort, with better results
<http://www.moosemystic.net/Gallery/tech/Scan/VuesProf/>.
One may, of course, do the same thing with contemporary slide films. The
"Problem" for some is that this way, the
differences between films are "corrected", so your Velveeta would look like
your Kodachrome.
To profile the scanner itself, so that differences in films are retained in the
scans, is a trickier business. You need
a piece of film with an IT8 profile on it, and the associated data file
detailing the differences between the film and
ideal. With a scanner profile made from that, your Velveeta will scan as some
weird, cheesy, violet tinted thing, like
the originals.
Both Wolf Faust and SilverFast used to sell IT8 slides on Kodachrome. I know
the SilverFast ones are long ago sold out.
I don't know what Wolf is doing about that these days. Like Piers, I have one
of his KRs somewhere around here. KR was
the best film for that, with it's high color stability.
OTOH, do you actually know that the default scanner profile that comes with
VueScan is bad? Or only that it might be?
My desire was the opposite. I wished to scan my KR, EK, Agfa and Fuji slides
from the past so that they all had the
same, relatively "correct", colors. Can't be done.
(BTW, apropos WB, I saw a bit of “Expedition With Steve Backshall”, about
underwater caves in Yucatan, a couple of days
ago. I noticed the same WhiBal card that I use dangling from the fancy,
complex, underwater camera gear.)
Whitey B. Moose
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